volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Combination Valve, Checking|Page 4876 > < Air Injection Control Valve|Locations
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Air Injection Control Valve: Testing and Inspection
Combination Valve, Checking

With Manufacturer's Scan Tool

Special tools and equipment

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VAG 1390 hand vacuum pump

Test requirements

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No DTCs in DTC memory.

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Output Diagnostic Test Mode (DTM) performed.

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No leaks in vacuum lines or hose connections

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Vacuum hoses not clogged or kinked

Test sequence

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Disconnect vacuum hose -1- at Secondary Air Injection (A1R) solenoid valve (N112) -2-.

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Connect VAG 1390 vacuum pump to vacuum hose -1-.

NOTES:  Do not use pressurized air for the following test!

Combination Valve, Checking|Page 4876 > < Air Injection Control Valve|Locations